answers

juna – an adjective meaning young,
maljuna – an adjective meaning old,
sana – an adjective meaning healthy,
malsana – an adjective meaning unhealthy (sick, ill),
amiko – a noun meaning friend,
malamiko – a noun meaning enemy,
junulo – a noun meaning a young person (youth),
junularo – a noun meaning a collection of young people (youth group),
maljunulo – a noun meaning an old person (senior),
sanulo – a noun meaning a healthy person,
malsanulo – a noun meaning a sick (unhealthy) person,
vendi – a verb meaning “to sell”,
vendejo – a noun meaning a place for selling (store),
vendejaro – a noun meaning a collection of stores (e.g. a strip mall or shopping centre),
malsanulejo – a noun meaning a place for sick people (e.g. a medical clinic or hospital).